Numerical Evaluation of Steel Columns Stability under Various Cases of Thermal Loads

Abstract:

This paper presents the results of a simulation study of fire tests of restrained (fixed-hinged) hot rolled steel column sections subjected to axial compression in addition to constant and variable thermal loads. Finite element computer software is utilized to study steel columns stability under thermal loads using three approaches; non-linear buckling analysis, thermal structural-Load Transfer Method (LTM) analysis, and Direct Coupled Field analysis. The finite element results are in good agreement with experimental results found in literature. The Direct Coupled Field analysis is also used to study a non-uniform temperature distribution on one side of the steel column. The LTM shows the best capabilities in studying such problems compared to the other two approaches

• Periodical: Advanced Materials Research (Volume 685)
• Pages: 290-294
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.685.290
• Online since: April 2013
• Authors: Amin H. Almasri, Hesham H. Alayan
• Keywords: Direct Coupled Method, Finite Element Model (FEM), Load Transfer Method, Non-Linear Buckling Analysis, Non-Uniform Temperature, Steel Columns, Uniform Temperature

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